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Simultaneous Biodegradation of Toluene and p ‐Xylene in a Novel Bioreactor: Experimental Results and Mathematical Analysis
Author(s) -
Lee JangYoung,
Choi YongBok,
Kim HakSung
Publication year - 1993
Publication title -
biotechnology progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.572
H-Index - 129
eISSN - 1520-6033
pISSN - 8756-7938
DOI - 10.1021/bp00019a007
Subject(s) - biodegradation , toluene , bioreactor , xylene , batch processing , degradation (telecommunications) , chemistry , chromatography , process engineering , chemical engineering , computer science , organic chemistry , engineering , telecommunications , programming language
Abstract Simultaneous biodegradation of toluene and p ‐xylene was performed in a novel bioreactor, and the performance was analyzed on the basis of both experimental and mathematical simulation results. The novel bioreactor employed a silicon tubing as a supplier of the aromatic solvents to be treated, and the transfer rate of toluene and p ‐xylene into the culture broth was easily controlled. Batch, sequencing batch, and continuous mode of operation were carried out in the novel bioreactor to compare the performance of the biodegradation of solvent mixture. Sequencing batch operation worked well, but several operational difficulties were found. Continuous operation was shown to present higher biodegradation rates and operational stability. The continuous biodegradation process was mathematically simulated, and operational conditions were optimized on the basis of the simulation results.